create tar.gz
> tar czvf myfolder.tar.gz folder_name
extract from tar.gz
> tar -zxvf extractme.tar.gz
install/uninstall .deb
> sudo dpkg -i package_file.deb
> sudo dpkg -r package_name
configure ubuntu unity
> sudo apt-get remove liboverlay-scrollbar-0.1-0 overlay-scrollbar
> sudo apt-get install compizconfig-settings-manager